Current in wire in Magnetic field[Easy QUICK question]

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Homework Help Overview

The discussion revolves around the behavior of current in a wire when subjected to a magnetic field, specifically focusing on the direction of current flow when the wire is moved in different directions relative to the field.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the application of the right-hand rule to determine the direction of current flow, with some attempting to reconcile different equations related to magnetic force and current direction.

Discussion Status

There is an ongoing exploration of the conditions necessary for current generation in a conductor within a magnetic field. Participants are questioning their interpretations of the right-hand rule and the implications of using different equations to arrive at conflicting results.

Contextual Notes

Some participants express urgency in resolving the question, indicating a time constraint related to homework submission. There is also mention of confusion regarding the treatment of charge signs in the context of current flow.

orangefruit
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Homework Statement


Suppose a very long straight wire were held perpendicular to the plane of the page such that it intersects the page at point D. Additionally, suppose the wire was being moved toward the top of the page.

Suppose instead that the wire were moved toward the left side of the page. Would the current through the wire flow into the page, out of the page, or not at all?

Q1_f1.png



Homework Equations


Right hand rules. F=qv x B. F= IL x B.


The Attempt at a Solution


I think this is into the page. I used qVxB. My index finger is going to the left. Middle finger straight. So the force is down. The force pushes positive currents into the page. Is this correct? My other way was F= ILxB. But it gave me out of the page. I think it's because I treat the force as the v. But I think that's wrong because that F is magnetic. Thank you for the help. This is a little urgent
 
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Good Morning OrangeFruit,

In order for a current to be generated in a conductor due to of magnetic field, what are the conditions?
 
orangefruit said:

My other way was F= ILxB. But it gave me out of the page. I think it's because I treat the force as the v. But I think that's wrong because that F is magnetic. Thank you for the help. This is a little urgent

both of these point into the page... F=q*vxB where q is positive... but the current is due to negative charges so here the equation is F=-q*vxB=-ILxB...
 

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